Electrical connecter



Nov. 171 1925 A. C. THOMPSON ELECTRICAL CONNECTER Filed Nov. l, v1924 gnwltoc 'referred to and 018.11115.'

'Pienied Nov. 17, i925.

liNifTiaDv STATESA FATE NTl *ori-ica nos cnciL rnoirrson, `or sroxami, WASHINGTON;

ELECTRICAL consacrait.

appncaiionniea Nevember i, issu. seriale-m. 747,215.

To all fwwml may concern: Be itknownthat I, Anios C. THOMPSON,

a citizen cf vthe United States, lresiding at S okane, in; Spokane County, and State of ashington, havefinvented certainnew and useful Improvements in Electrical Connecters of-'which the following is'aspecica.` tion. j i Y which is readily interchangeable for selec? tvemse with either an illuminating device as an electricfl'am or a heating device, as an electric iron.l

posed of a"mii1imum number of parts, which maybe manipulated with facility and conf venie nc`e,;jand which may be manufactured at a'comparatively lowcost* The invention conslsts iiiA certain 'novel'.

features of `construction and combinations and arrangements of parts involving. the fixture and locking means for its separable parts as will hereinafter be more specifically pointedout in' my appended In the accompanying drawings I have. il-

" lustrated one complete example of the hysi-f cal-embodiment ofmy invention wherein the parts are combined and arranged in accorddevice of. my invention in'giboltanditsgccnnectngfparts, Figure 4,y c isa detail view illustrating the lockingbolt Figure-:5 isla ance withthe best V'inode I .have thus far dejvisedhfor thepractical application of the Figure V1 isa view in side elevation of the v; Figure ais a. perspective. viewer the lockin section and showing its relationtov one `of the conductor plates of, the -plug holder.

ductor plates.

."InL cari-'yin out thepreferred 'form of my:

#invention as illustrated in f the drawings bethconstructediofiiisulatedmaterial suited j r,thefpurpose.,Y 'The 'holderl 1 isyprov'idedwith the-usual-'ca'sing 3 and itscapli, and the circuit wiresf andy-6 are introduced to the y means of the device 'vot my inventionfl provide a fixture that is comscrews on the upper face 9 of the holder. Ihese screws are also utilizedto retain'the'. pair of angular conductor plates 10 and 11 located in the slots 12 of the holder, and said.

plates are each fashioned'withan integral,

folded, resilient tongue or spring contact, as Y l3-and 14. The slots 12 for'theplates are recessed as at 15 for the reception of the angular conductor plates 16 and 17 secured .by terminal screws 18 and 19 to the plug 2;

`These-conductor plates as seen in Figure 2' 'A are. designed to rictionally 4 engage the spring contacts 13 andl 14 respectively for electrical connection when the parts are pr'perly related. v f

he `terminal `screws 1S A.and

ass

throu h perforations orapertures provided there orei-i'ilthe plugand the screw 18 securesia contact plate 20 atthe lower face of of 'the plu which sleeve is rigidly `fixedy to the'face o the plug.

The plug andsocket sleeve are-enclosed within a casing 22 which is'properlyinsulated as shown in Figure 2.

y reference to Figure 2 it will'be obvious i plug in close relationship with its holder and for making the electrical connection between the conductiiigparts. x

It. will be apparent that the plug mayv he .a detachable ,connecterhaving wires to an electric heating device, l,asian iron, or as illustrated in Figure 1 ItheA plug may have attached thereto an incandescent lain i23.v

v rThe lamp is screwedy into the socket s eeve face view cfone of theconfa'dapted'foraI variety-{ofzselective uses in connection with illuminating-or heating devices. s' l VFor quick detachment'oi the lainpn Fig;`

*ure 1,-instead oil-unscrewingjthe lamp 4from ,its socket sleeve, the conductor plates 16 and17 ofthe plu j-'may with facility be withdrawn vfrom 'ctional vand electrical -ioo the plug and central thereof. The screw 19v f Y vis ,secured for electricalconnection toan an-f nular flange of a threaded socket sleeve 21 fao contact with the stationary springs y13v and 14.

In some instances a positive lock between the-plug and its holder is desirable to prevent accidental displacement of the connecter. For this purpose I provide a slide bolt 24 which is preferably angular in cross section and fashioned with a handle or knob 25, bnd a pair of spaced annular rooves o'r notches to rovide reduced portions 26 and 27 of the liblt.

The bolt is carried by the holder and is adapted to slide transversely therein in a di'ametrically arranged bolt hole or guideway 28, and the plates 10 and 11 are provid? ed with complementary boltholcs 29 (Fig. 5) for the accommodation of the bolt.

.The conductor plates 16 and 17 of. the

' plug co-act with the slide bolt' of the holder for locking these members together `and as a means for accomplishing this end said plates .havetheir free ends bifurcated as at 30 and x31," and each plate,4at 32 is provided with an enlarged bolt hole conforming in'sizeand shape to the cross-sectional area of thebody of the slide bolt. The bifurcated ends of the .plates thus forni op positely disposed retaining latches over'- yhanging the slide bolt,.as in Figure-2 to prevent withdrawal ofthe conductor plates ofthe plug from' the holder.

By pull'ng th 'knob as indicated byidotted llines' in Figure 2 the slide bolt is brought to position in Figure 3 where the reduced portions 26 and 27 of the bolt are located between the pairs of bifurcated ends of the conductor plates. In this position the bolt is free of the overhanginglatches of the bifurcated ends, and the cplates may be withdrawn from the bolt an from the holder.

From the above description taken in connection with my drawings it will be a par- 'ent that I have provided a device yo this of my invention.

Having'thus fully describedv my invention,

" what "I- claim as new and desire to' secure by Letters Patent is 1. A holder havinga transverse bolt hole and perpendicular spaced slots and contactin said bolt hole for co-action with the free ends ,of the plug plates.

In testimony whereof I attx my signature.

AMos cEeQIL THOMPSON..

`plates'in said slots, a plug having'spaced 

